On April 17, 2025, Shanghai, China - SITWEI (Shanghai) Electronic Technology Co., Ltd. (stock abbreviation: SITWEI, stock code: 688213) recently announced the launch of the Automotive Sensor (AT) Series 3MP high-performance automotive grade image sensor - SC360AT. This new product is the first from SITWEI to use CarSens- Stacked BSI+Rolling Shutter architecture image sensor product created by XR Gen 2 process technology. As a 3.0 μ m pixel size image sensor, SC360AT is equipped with SuperPixGain HDR? 2.0, LFS and other advanced technologies combine performance advantages such as high sensitivity, high dynamic range (up to 140dB), low noise, low power consumption, and support for LED flicker suppression, providing accurate and reliable real-time images for various ADAS applications such as side view, rear view, and surround view, meeting the upgrade needs of intelligent car perception systems. In addition, SC360AT meets the requirements of two automotive standards, ISO 26262 ASIL-B Automotive Functional Safety and ISO 21434 Automotive Network Security, to accelerate the innovation of automotive intelligence and networking with high reliability and safety.
With the accelerating evolution and widespread adoption of intelligent vehicle technology, the number of cameras installed in a single car will continue to grow. At the same time, advanced intelligent assisted driving functions have put forward higher requirements for environmental perception accuracy, driving the market's demand for high-resolution and high-performance in vehicle CMOS image sensors to further increase. According to TSR's latest forecast, the global shipment of in vehicle CMOS image sensors will increase from 380 million to 480 million from 2023 to 2028. In terms of in vehicle ADAS camera applications, 3MP has gradually become the mainstream resolution configuration, providing vehicles with more comprehensive environmental perception capabilities, thereby promoting the smooth implementation of higher-level intelligent assisted driving functions on the vehicle end.
SuperPixGain HDR? 2.0 technology, creating high-precision visual perception images
During vehicle operation, complex and varied lighting conditions such as low light, strong light, and backlighting pose great challenges to the imaging quality and accuracy of onboard cameras. Based on CarSens- The SC360AT image sensor, manufactured using XR Gen 2 technology, has a large pixel size of 3.0 μ m and is equipped with SuperPixGain HDR? With advanced technologies such as 2.0 and support for multiple high dynamic range (HDR) modes, SITWE provides clear and accurate real-time image capture for in car cameras with excellent sensitivity, signal-to-noise ratio, dynamic range, and other performance advantages, further helping intelligent car perception systems achieve accurate recognition and judgment.
High sensitivity and high signal-to-noise ratio
SC360AT image sensor innovatively adopts SuperPixGain HDR? 2.0 technology achieves dual improvement in sensitivity and signal-to-noise ratio through a single pixel+overflow charge storage architecture. The sensitivity of SC360AT is as high as 12348mV/lux * s, and its peak quantum efficiency (QE peak) in the visible light band at 520nm is as high as 82%. Compared to traditional pixel based CIS architecture, the SC360AT based on single pixel and overflow charge storage architecture effectively avoids optical crosstalk, color difference, and other issues caused by pixel based CIS architecture. With excellent sensitivity and signal-to-noise ratio, it provides bright and clear high-quality images for cameras.
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High Dynamic Range (HDR)
Does SC360AT support SuperPixGain HDR+ VS、SuperPixGain HDR? Multiple HDR modes can provide excellent high dynamic range imaging for car cameras. In SuperPixGain HDR+ In VS four frame HDR mode, the SC360AT can achieve a dynamic range of up to 140dB, effectively solving the problems of overexposure of bright parts and lack of details in dark parts under extreme lighting conditions such as backlighting (tunnel exit) and strong light (high beam of oncoming vehicles at night), further improving the accuracy and efficiency of vehicle camera detection and recognition. In terms of three frame HDR mode, does SC360AT support SuperPixGain HDR? Mode (dynamic range>110dB), through the fusion of three frames of high gain, low gain, and overflow under the same exposure, the captured real-time image's light and dark details are clearly visible. Multiple HDR mode options to meet the diverse configuration upgrade needs of ADAS cameras.
Excellent noise suppression performance while balancing ultra-low power consumption performance
Nighttime roads, underground parking lots with insufficient lighting, and other low light environments have put forward more stringent requirements for the noise suppression performance of image sensors. Based on SITWEI's advanced SFC Pixel The new SC360AT has excellent noise suppression performance with technologies such as ultra-low noise peripheral reading circuits. Compared to products of the same specifications in the industry, the SC360AT has reduced reading noise (RN) and fixed noise (FPN) by about 11% and 21% respectively, and its PRNU has been significantly reduced by about 49%. Even in low light scenes, it can provide clear and low-noise images for car cameras, which is beneficial for accurate recognition and judgment of intelligent car vision systems.
Based on Sitewise's advanced CarSens- The XR Gen 2 process technology, using the Stacked BSI architecture SC360AT image sensor, has achieved a significant reduction in power consumption. In SuperPixGain HDR+ In VS four frame HDR mode RAW format, the typical power consumption of SC360AT is as low as 310mW or below. With the performance advantage of ultra-low power consumption, it helps reduce the working heat generation of the car camera, thereby improving the reliability and stability of the car camera.
LED flicker suppression technology solves the difficulty of vehicle perception
When the vehicle is driving on the road, the LED flashing phenomenon of LED lighting devices such as traffic signals and LED lights can interfere with the image capture effect of the onboard camera CIS, resulting in stripes, flashing spots, and other phenomena in the CIS imaging image, which affects the driver and assisted driving system's judgment of traffic conditions. SC360AT is equipped with STMicroelectronics' independently developed LFS technology (LED flicker suppression technology), which covers the LED flicker gap by adjusting the exposure duration of some pixels, ultimately obtaining complete image information without LED flicker. It can help ADAS systems accurately identify traffic signals, the color and status of nearby vehicle lights, and make timely decisions.
SC360AT offers two packaging forms, iBGA and COB, providing more diverse and flexible choices for clients to upgrade their car camera circuit architecture and structural design.
Shi Wenjie, Vice President of Product Marketing at SITWEI, said, "SC360AT is SITWEI's first CarSens- Stacked BSI+Rolling Shutter architecture image sensor product created by XR Gen 2 process technology. As a new product of 3MP automotive grade image sensor, SC360AT is equipped with SuperPixGain HDR? 2.0, LFS and other advanced technologies from SITWEI have excellent performance in sensitivity, dynamic range, noise suppression, LED flicker suppression, etc., providing reliable, clear, and accurate real-time images for applications such as side view/rear view/surround view cameras in vehicles. The in vehicle (AT) series image sensor products under the SITWEI brand cover resolutions ranging from 1MP to 8MP, and are suitable for three major application scenarios: ADAS, perception, and cabin. In the future, SITWEI will continue to expand its AT series product matrix, with more high-performance and high reliability automotive grade image sensor products, to assist in the advanced development of intelligent automotive applications
SC360AT has currently accepted samples and will achieve mass production in Q3 2025. To learn more about the SC360AT product, please contact the sales personnel of SITWEI.
About SmartSens Technology
SmartSens Technology (stock abbreviation: SmartSens, stock code: 688213) is a high-tech enterprise engaged in the research and development, design, and sales of CMOS image sensor chip products. Its headquarters is located in Shanghai, China, and it has research and development centers in multiple cities and countries.
Since its establishment, SITWEI has always focused on innovation and research and development of high-end imaging technology, and has gained recognition and favor from many customers with its performance advantages. As a CMOS image sensor product company committed to providing multi scenario applications and full performance coverage, our company's products have covered the full performance requirements of multi scenario application fields such as security monitoring, machine vision, intelligent vehicle electronics, and smartphones.
SITWEI will uphold the vision of "using cutting-edge intelligent imaging technology to enable people to better see and understand the world", with customer needs as the core driving force, continuously promote the upgrading of cutting-edge imaging technology, expand product application areas, and work with partners to promote the deepening development of future intelligent imaging technology.
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